Add additional settings for openscad

README.md

@@ -1,3 +1,15 @@
 # multimaze
 
-A collection of maze generation programs
+> A collection of maze generation programs
+
+## `main.lua`
+Ported back in 2015 (and sine adapted) from an algorithm of my own design that originally implemented in Python.
+
+Now has a 3d mode!
+
+To render a 3D maze as a .STL file, do this:
+
+```bash
+lua main.lua maze3d_openscad -w 91 -h 91 -d 71 -f 91x91x71.scad
+openscad -o 91x91x71.stl 91x91x71.scad
+```

main.lua

@@ -12,7 +12,10 @@ local settings = {
 	height = 11,
 	depth = 7,
 	
-	filename = "maze.scad"
+	filename = "maze.scad",
+	
+	scale = 5,
+	inverted = true
 }
 
 for i=1,#arg do
@@ -33,6 +36,11 @@ for i=1,#arg do
 	elseif string.match(arg[i], "--filename") or string.match(arg[i], "-f") then
 		i = i + 1
 		settings.filename = arg[i]
+	elseif string.match(arg[i], "--scale") then
+		i = i + 1
+		settings.scale = tonumber(arg[i])
+	elseif string.match(arg[i], "--no-invert") then
+		settings.inverted = false
 	end
 end
 
@@ -55,11 +63,13 @@ Modes:
 	maze3d_openscad		Generates a 3d maze as an openscad file
 
 Options:
-	-w	--width			Sets the width of the maze
-	-h	--height		Sets the height of the maze
-	-d	--depth			Sets the depth of the maze (only applicable to 3d mazes)
-	-s	--seed			Sets the seed
-	-f	--filename		Sets the output filename
+	-w	--width {int}		Sets the width of the maze
+	-h	--height {int}		Sets the height of the maze
+	-d	--depth {int}		Sets the depth of the maze [3d only]
+	-s	--seed {string}		Sets the seed
+	-f	--filename {string}	Sets the output filename
+		--no-invert			Don't invert the output [openscad output only]
+		--scale {int}		Sets the scale of the output [openscad output only]
 ]])
 end
 
@@ -94,10 +104,16 @@ local function maze3d_openscad()
 		settings.depth
 	)
 	
+	local openscad_settings = {
+		scale = settings.scale,
+		inverted = settings.inverted
+	}
+	
 	openscad.write3d(
 		world,
 		settings.width, settings.height, settings.depth,
-		settings.filename
+		settings.filename,
+		openscad_settings
 	)
 	print("Maze written to "..settings.filename)
 end

openscad.lua

@@ -1,8 +1,6 @@
 local M = {}
 
-function M.write3d(maze, width, height, depth, filename)
-	local scale = 5
-	local inverted = true
+function M.write3d(maze, width, height, depth, filename, settings)
 	local out = io.open(filename, "w")
 	out:write("// Generated by multimaze (lua)\n")
 	out:write("// Hit the Render button (F6) to make the preview look better\n")
@@ -13,9 +11,9 @@ function M.write3d(maze, width, height, depth, filename)
 	for z = 0, depth - 1, 1 do
 		for y = 0, height - 1, 1 do
 			for x = 0, width - 1, 1 do
-				if (maze[z][y][x] == "#" and not inverted) or	
-					(maze[z][y][x] == " " and inverted) then
-					out:write("\ttranslate(["..x*scale..", "..y*scale..", "..z*scale.."]) cube(size = "..scale..");\n")
+				if (maze[z][y][x] == "#" and not settings.inverted) or	
+					(maze[z][y][x] == " " and settings.inverted) then
+					out:write("\ttranslate(["..x*settings.scale..", "..y*settings.scale..", "..z*settings.scale.."]) cube(size = "..settings.scale..");\n")
 				end
 			end
 		end